ObjectiveTo investigate the expression of Ezrin and inducible nitric oxide synthase (iNOS) and their correlation to malignant proliferation of colonic adenoma. MethodExpressions of Ezrin,iNOS and nuclear Ki-67 antigen were detected by immunohistochemistry in tubular adenoma (60 cases),villous adenoma(40 cases) and malignant (30 cases ) pleomorphic adenoma. ResultsExpressions of Ezrin,iNOS in tubular adenoma [58.3％ (35/60), 50.0％ (30/60)], villous adenoma [72.5％ (29/40), 70.00(28/40)]and malignant pleomorphic adenoma [96.7％(29/30),93.3％(28/30)]were gradually increased ( X2 = 11.600,P = 0.005; X2 = 8.451, P = 0.015 ). There was a significant positive correlation between the expression of Ezrin and iNOS (r = 0.765, P ＜ 0.01 ). Nuclear Ki-67 antigen proliferation index was increased with the increasing of Ezrin and iNOS expressions. ConclusionOverexpression of Ezrin and iNOS may promote proliferation and malignant transformation of colonic adenoma.

Objective To detect Nogo-A proteolytic fragment in CNS injury models and investigate its proteolytic mechanism as well as potential functions. Methods Western blot was performed to detect Nogo-A proteolytic fragment after spinal cord transection,brain ischemia and KA-induced cerebral cortex injury in rats. Results We detected Nogo-A proteolytic fragment in spinal cord transection and brain ischemia models,whereas no Nogo-A proteolytic fragment was found in KA-induced cerebral cortex injury model.Conclusion\ CNS mechanical and ischemic injury may induce the degradation of Nogo-A by certain mechanisms.

The investigation on the chemical constituents of Anabasis aphylla L. was carried out by using various chromatographies, such as silica gel, Sephadex LH-20 and RP-C18 column chromatography. Further detailed investigation on the fraction of the ethanol extract of Anabasis aphylla L. yielded one new compound p-acetyl-phenol 1-O-beta-D-xylopyranosyl-(1-->2)-beta-D-glucopyranoside (1), together with five known compounds: piceine (2), isorhamnetin (3), quercetin (4), rutin (5) and isorhamnetin-3-rutinoside (6). Their structures were elucidated by spectral analysis such as NMR and MS. Among these compounds, compounds 2-6 were isolated from this plant for the first time.

Objective To investigate the expression pattern and possible function of Nogo-A during neuronal growth. Methods E18 rat hippocampal neurons were primarily cultured both in high-density and low-density conditions. Immunohistochemistry and Western blot were performed to detect Nogo-A expression and distributional changes. Results Nogo-A was found in hippocampal neurons, mainly located in the cytoplasm, plasma membrane and neurites. It was detected at the proximal part of all neurites before axon formation. In axons, Nogo-A was enriched in the distal segment and axonal growth cone. In mature neurons, the fiber net work displayed a large number of Nogo-A immunoreactive varicosities. Conclusion The present results indicate that the neuronal Nogo-A may be involved in the process of neurite outgrowth and axonal projection.

Objective To study the chemical constituents from the aerial parts of Anabasis aphylla.Methods The chemical constituents were isolated and purified by silica gel column and Sephadex LH-20 column chromatography.Spectroscopic methods such as MS and NMR spectra were used for the structural identification.Results A new caffeate ester, named eicosyl-(Z)-caffeate (1), along with fourteen known compounds was isolated from the EtOAc part.Conclusion Compound 1 is a new compound and compounds 2-13 are isolated from the plants of Anabasis L.for the first time.

Three myelin proteins, Nogo-A, MAG and OMgp, transduce their neurite-outgrowth inhibitory signal through a common receptor complex: NgR/ p75NTR (or TROY). Recently, LINGO-1 is identified as another essential component and regulator for the Nogo-66 receptor/p75 signaling complex. LINGO-1 is restricted to express in CNS, neuronal LINGO-1 is shown to be involved in the signal transduction from three myelin proteins, and Lingo-1 in oligodendrocyte negatively regulates the differentiation and myelination of oligodendrocyte. To investigate the potential activity of LINGO-1 in neuronal apoptosis, LINGO-1-Fc fusion protein including the extracellular LRR and IgC2 domain, was used as functional antagonist to study its protective effect on low-potassium induced apoptosis of cerebellar granule neurons (CGNs). In judgement of the apoptotic nuclei stained by Hoechst, LINGO-1-Fc pretreatment for 2 h significantly prevents apoptosis of CGNs. Although GST-LINGO-1 protein, including the LRR domain, binds to the CGN cultures in the same way with LINGO-1-Fc, it doesn't prevent the apoptosis of CGNs. These results indicate that LINGO-1-Fc fusion protein prevents low-potassium induced apoptosis of cerebellar granule neurons in certain conditions and this activity is probably IgC2 domain dependent.

Lung cancer is currently one of the most common malignant tumors in the world. The occurrence and development of lung cancer, especially non-small cell lung cancer (NSCLC), are closely related to the abnormal expression of long non-coding RNA (lncRNA). lncRNA with a transcript of more than 200 nucleotides is involved in chromatin modification, transcription activation, transcription interference and other regulatory processes, and has varying degrees of regulation on the proliferation, migration, and invasion of tumor cells. It is characterized by up-regulation or down-regulation of expression. At present, there are a large number of studies on lncRNA, because lncRNA has considerable application prospects in the diagnosis, clinical treatment, drug resistance research and prognosis evaluation of NSCLC. In this paper, the overview of lncRNA, the up-regulation or down-regulation of NSCLC-related lncRNA expression, NSCLC clinical treatment and drug-resistant lncRNA were summarized.

Objective To explore the application of single-solution focused approach on nursing intern team in Emergency Department.Methods We selected ninety nursing interns from the period of January to December 2013, and intervene by single-solution focused approach.The nursing scale of learning organization had been utilized and compared and analyzed the differences between before and after intervention.The intervention model had been assessed.Results After intervention, ninety interns acquired (80.31 ±4.68) score for nursing scale of learning organization, which was beyond the score of before intervention (74.30 ±3.92) (t=6.26,P <0.05).The global consciousness and strategic leadership, team cooperation and innovation, advocate dialogue and communication and investigation achieved [(23.12 ±4.28),(24.54 ±3.12),(26.05 ± 2.55) and (11.03 ±2.40) respectively] after intervention, which all of them were higher than those score of before intervention [(21.36 ±3.90),(20.79 ±2.56),(23.44 ±3.24) and (9.78 ±2.34) respectively] (t=2.44,4.98,3.19,2.12, respectively; P <0.05).Conclusions The model of single-solution focused approach on nursing intern team in Emergency Department could improve nurses’ team learning capability and construct learning organization better.

OBJECTIVE: To explore the correlation between Fragile X mental retardation gene-1 (FMR1) gene CGG repeats with diminished ovarian reserve (DOR). METHODS: For 214 females diagnosed with DOR, DNA was extracted from peripheral blood samples. FMR1 gene CGG repeats were determined by PCR and capillary electrophoresis. RESULTS: Three DOR patients were found to carry FMR1 premutations, and one patient was found to carry gray zone FMR1 repeats. After genetic counseling, one patient and the sister of another patient, both carrying FMR1 permutations, conceived naturally. Prenatal diagnosis showed that both fetuses have carried FMR1 permutations. CONCLUSION FMR1 gene permutation may be associated with DOR. Determination of FMR1 gene CGG repeats in DOR patients can provide a basis for genetic counseling and guidance for reproduction.
Female ; Fragile X Mental Retardation Protein/metabolism* ; Fragile X Syndrome/genetics* ; Humans ; Ovarian Diseases ; Ovarian Reserve/genetics* ; Primary Ovarian Insufficiency/genetics* ; Trinucleotide Repeats/genetics*

Objective To compare the epidemiological characteristics of COVID-19 in Guangzhou and Wenzhou, and evaluate the effectiveness of their prevention and control measures. Methods Data of COVID-19 cases reported in Guangzhou and Wenzhou as of 29 February, 2020 were collected. The incidence curves of COVID-19 in two cities were constructed. The real time reproduction number ( R t ) of COVID-19 in two cities was calculated respectively. Results A total of 346 and 465 confirmed COVID-19 cases were analysed in Guangzhou and Wenzhou, respectively. In two cities, most cases were aged 30-59 years (Guangzhou: 54.9%; Wenzhou: 70.3%). The incidence curve peaked on 27 January, 2020 in Guangzhou and on 26 January, 2020 in Wenzhou, then began to decline in both cities. The peaks of imported COVID-19 cases from Hubei occurred earlier than the peak of COVID-19 incidences in two cities, and the peak of imported cases from Hubei occurred earlier in Wenzhou than in Guangzhou. In early epidemic phase, imported cases were predominant in both cities, then the number of local cases increased and gradually took the dominance in Wenzhou. In Guangzhou, the imported cases was still predominant. Despite the different epidemic pattern, the R t and the number of COVID-19 cases declined after strict prevention and control measures were taken in Guangzhou and in Wenzhou. Conclusion The time and scale specific differences of imported COVID-19 resulted in different epidemic patterns in two cities, but the spread of the disease were effectively controlled after taking strict prevention and control measures.